Quynh

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Hi, How do I pass the checked values of the radcombobox (with checkbox option) to an object datasource? I know I can get all the checked values then put to a session variable then use session parameter. But is there any easier way?

Gidon

You could write a custom class inheriting from System.Web.UI.WebControls.Parameter that parses the RadComboBox and passes the data in a way that your back end understands, but since you're technically passing more than one value this can get tricky when you involve user types and table valued parameters.

If you know the RadComboBoxItems ahead of time you can use a custom Parameter class to get a single true/false value fairly easily:

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